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altimeter

(al tim′ət ər; also al′tə mēt′ər)

noun

an instrument for measuring height above a given reference level, as the sea or ground: in aircraft it is either an aneroid barometer with a dial marked in feet or meters or an instrument using radar

Origin: alti- + -meter

See altimeter in American Heritage Dictionary 4

noun

An instrument for determining elevation, especially an aneroid barometer used in aircraft that senses pressure changes accompanying changes in altitude.

Origin:

Origin: Latin altus, high; see al-² in Indo-European roots

Origin: + -meter

Related Forms: